Can you enter a W-2PR in Turbotax? I worked for a few weeks in Puerto Rico and got a W-2PR but cannot figure out how to input it. Do I enter it like a regular W-2?

You can't enter it like a normal W-2 form. You would enter it in the Less Common Income section of TurboTax, then Foreign Earned Income and Exclusion. Indicate that the income was from a statement from your foreign employer:

Enter the amount as foreign earned income and it will appear on line 1(h) of your Form 1040 as Other earned income.